2245240145 has 8 divisors (see below), whose sum is σ = 2694542760. Its totient is φ = 1796022400.

The previous prime is 2245240111. The next prime is 2245240147. The reversal of 2245240145 is 5410425422.

It can be written as a sum of positive squares in 4 ways, for example, as 75916369 + 2169323776 = 8713^2 + 46576^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2245240145 - 2²² = 2241045841 is a prime.

It is a super-2 number, since 2×2245240145² = 10082206617439242050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2245240147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89891 + ... + 112119.

It is an arithmetic number, because the mean of its divisors is an integer number (336817845).

Almost surely, 2^2245240145 is an apocalyptic number.

It is an amenable number.

2245240145 is a deficient number, since it is larger than the sum of its proper divisors (449302615).

2245240145 is a wasteful number, since it uses less digits than its factorization.

2245240145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42435.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2245240145 is about 47383.9650620334. The cubic root of 2245240145 is about 1309.4460188941.

Adding to 2245240145 its reverse (5410425422), we get a palindrome (7655665567).

The spelling of 2245240145 in words is "two billion, two hundred forty-five million, two hundred forty thousand, one hundred forty-five".